In September, Bandar Seri Begawan typically sees daytime highs of 31.4°C and overnight lows around 23.7°C. Compared to the annual average high of 31.1°C, September runs +0.3°C.
September in Bandar Seri Begawan averages a daytime high of 31.4°C and an overnight low of 23.7°C.
September runs +0.3°C compared to Bandar Seri Begawan's annual average high of 31.1°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 31.4°C and cooler evenings around 23.7°C.